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Finding the Fourth Proportional to 8,949.11, 13,422.64 and 2,375.81

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Solution

The fourth proportional to 8,949.11, 13,422.64 and 2,375.81 is: 3,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.11 : 13,422.64 = 2,375.81 : x
  2. Step 2: Convert to fraction form
    8,949.11/13,422.64 = 2,375.81/x
  3. Step 3: Cross multiply
    8,949.11x = 13,422.64 × 2,375.81
  4. Step 4: Simplify right side
    8,949.11x = 31,889,675.90
  5. Step 5: Solve for x
    x = 31,889,675.90/8,949.11
  6. Step 6: Final answer
    x = 3,563.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.